There is recent publication by Bo Meng and coworkers from the ZOTERAC consortium. It is entitled "Terahertz Intersubband Electroluminescence from Nonpolar m-Plane ZnO Quantum Cascade Structures" and can be accessed here.
There is recent publication by Bo Meng and coworkers from the ZOTERAC consortium. It is entitled "Terahertz Intersubband Electroluminescence from Nonpolar m-Plane ZnO Quantum Cascade Structures" and can be accessed here.